Economic Fungi #242 c.

A.B. Seymour and F.S. Earle [1-550, plus extras]

Field Museum of Natural History
Catalog #: C0275751F
7ffdffdf-0cb9-407e-ad85-be75c4dcbfd5
H. L. Merrow #242 c 14 June 1892
Gymnosporangium clavariiforme (Wulfen) DC. (Wulfen) DC.
U.S.A., Michigan, Washtenaw, Ann Arbor; Ann Arbor